SDS-PAGE loading dye - (Jul/16/2010 )

I'm running a 15% acrylamide gel and expecting a protein with ~7.5 kDa size. Since I don't want my protein to be running out of the gel I wonder now, will loaded proteins run ahead of the blue loading dye? I'm using 2x loading dye

-Ardelus-

Hi,

You can reduce the amount of bromophenol blue concentration in Loading buffer that will help you in a better way, As its the concentration of glycerol which affects retention of protein in the well and dye just serve as tracking marker . Iin 15% SDS PAGE dye runs app at 5KDa size.